回答編集履歴
3
追記
test
CHANGED
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@@ -15,3 +15,7 @@
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15
15
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SELECT DATEADD(day, 20, birthday) FROM tbEmpTable ;
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16
16
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17
17
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```
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18
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+
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19
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+
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20
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+
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21
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+
重複した値を取り除く場合はUNION ALLの代わりにUNIONを使用してください。
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2
修正
test
CHANGED
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@@ -8,7 +8,7 @@
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8
8
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9
9
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INSERT INTO birthday
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10
10
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11
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-
SELECT birthday FROM tbEmpTable
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11
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+
SELECT birthday FROM tbEmpTable
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12
12
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13
13
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UNION ALL
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14
14
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1
修正
test
CHANGED
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@@ -8,6 +8,10 @@
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8
8
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9
9
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INSERT INTO birthday
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10
10
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11
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+
SELECT birthday FROM tbEmpTable ;
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12
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+
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13
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+
UNION ALL
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14
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+
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11
15
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SELECT DATEADD(day, 20, birthday) FROM tbEmpTable ;
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12
16
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13
17
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```
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